Crépin C, Dubois V, Goldfarb F, Chaput F, Boilot J P
Laboratoire de Photophysique Moléculaire du CNRS, Bât 210 Universite Paris-Sud, 91405 Orsay Cedex, France.
Phys Chem Chem Phys. 2005 May 7;7(9):1933-8. doi: 10.1039/b500578g.
Fluorescence and phosphorescence spectra and decay times are recorded upon a narrow-band laser excitation for naphthalene (N) and quinoline (Q) embedded in xerogels prepared from MTEOS/TEOS mixtures, in the 10-300 K temperature range. A site selectivity of the excitation is observed at T <120 K and T <150 K, for N and Q, respectively. In the case of quinoline, different families of sites are characterized. The results are discussed in terms of comparison with the N and Q emission behaviour in other environments, especially in rare-gas matrices.
在10 - 300K温度范围内，对由MTEOS/TEOS混合物制备的干凝胶中嵌入的萘（N）和喹啉（Q）进行窄带激光激发后，记录荧光和磷光光谱及衰减时间。分别在T < 120K和T < 150K时观察到萘和喹啉激发的位点选择性。对于喹啉，不同的位点家族得到了表征。通过与萘和喹啉在其他环境（特别是稀有气体基质）中的发射行为进行比较来讨论这些结果。
